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2 September, 06:50

Evaluate the geometric series given ay = - 120, r = 0.5 and n = 6

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  1. 2 September, 07:20
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    -236.25

    Step-by-step explanation:

    S6 = a (1-r^6) / (1-r) = - 120 (1-0.5^6) / (1-0.5)
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